<div class="signin">
    <div class="signin-head"><img src="images/head_120.png" alt="" class="img-circle"></div>
    <form class="form-signin" role="form">
        <div class="form-group has-feedback" :class="[ validated? 'has-success': 'has-error' ]">
            <input type="text" v-model="phoneNum" placeholder="请填写手机号" class="form-control" />
            <span class="glyphicon form-control-feedback" :class="{ 'glyphicon-ok' : validated}"></span>
        </div>
        <input type="password" v-model="pwd" class="form-control" placeholder="密码" required />
        <button class="btn btn-lg btn-warning btn-block" @click="doSubmit">登录</button>
        <label class="checkbox">
            <input type="checkbox" value="remember-me"> 记住我
        </label>
    </form>
</div>